In many countries, regulatory requirements may limit the number of 5 GHz channels available or place additional restrictions on their use because the spectrum is shared with other technologies and services. For instance, in the US and other countries, some of the Unlicensed National Information Infrastructure (U-NII) bands are used by radar systems. Wi-Fi networks operating in those bands are required to employ a radar detection and avoidance
capability. The IEEE 802.11h standard addresses this requirement by adding support for DFS and transmit power control (TPC) on every DFS channel. What are the DFS channels in 5ghz?What is DFS channel? DFS is Dynamic Frequency Selection, which is a function of using 5 GHz Wi-Fi frequencies that are generally reserved for radar, such as military radar, satellite communication, and weather radar. The DFS channels vary from country to country.
How many channels is the 5 GHz band is comprised of?In the 5 GHz band, we have channels ranging from 36 up to 165, and in the 6 GHz band, we have Wi-Fi channels ranging from 1-233.
What is the DFS spectrum?Dynamic Frequency Selection (DFS) is a legally required feature for all WiFi devices that share the 5 GHz band with radar. The IEEE 802.11 standard allows devices like routers and access points (APs) to share the 5 GHz radio spectrum with radar.
What is the result of 5ghz wavelengths being shorter than 2.4 GHz wavelengths?What is a result of 5 GHz wavelengths being shorter than 2.4 GHz wavelengths? C) 5 GHz waves have a lower indoor range then 2.4 GHz waves.
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Which two bands, in the 5ghz band, are home to the dynamic frequency selection (dfs) channels?
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